An air-standard Diesel cycle has a compression ratio of 16 and a cutoff ratio of 2. At the beginning of thecompression process, air is at 99 kPa and 27°C. Account for the variation of specific heats with temperature. The gasconstant of air is R = 0.287 kJ/kg.K.Determine the mean effective pressure.The mean effective pressure is 569.685kPa.

Answered: An air-standard Diesel cycle has a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

An air-standard Diesel cycle has a compression ratio of 16 and a cutoff ratio of 2. At the beginning of the
compression process, air is at 99 kPa and 27°C. Account for the variation of specific heats with temperature. The gas
constant of air is R = 0.287 kJ/kg.K.
Determine the mean effective pressure.
The mean effective pressure is 569.685
kPa.

Expert Solution

Step 1: Determine the given data

$table row cell compression space ratio open parentheses straight r close parentheses end cell equals 16 row cell cutoff space ratio open parentheses straight rho close parentheses end cell equals 2 row cell pressure space before space the space compression open parentheses straight P subscript 1 close parentheses end cell equals cell 99 space kPa end cell row cell temperature space before space the space compression open parentheses straight T subscript 1 close parentheses end cell equals cell 27 degree straight C end cell row cell gas space constant open parentheses straight R close parentheses end cell equals cell 0.287 space kJ divided by kg space straight K end cell end table$

Find out:

The mean effective pressure $stretchy left parenthesis P stretchy right parenthesis subscript bold mep$